CVE-2021-37145

Name: CVE-2021-37145
Creator: NVD / NIST
Published: 2021-09-07T23:15:07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.98%

Last modified Jun 17, 2026

CVE-2021-37145 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A command-injection vulnerability in an authenticated Telnet connection in Poly (formerly Polycom) CX5500 and CX5100 1.3.5 leads an attacker to Privilege Escalation and Remote Code Execution capability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. EPSS estimates a 1.98% chance of exploitation in the next 30 days.

Description

A command-injection vulnerability in an authenticated Telnet connection in Poly (formerly Polycom) CX5500 and CX5100 1.3.5 leads an attacker to Privilege Escalation and Remote Code Execution capability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.98%

78.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Poly	Cx5500 Firmware	1.3.5
Poly	Cx5100 Firmware	1.3.5

References

Timeline

Published: Sep 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37145?

How severe is CVE-2021-37145?

CVE-2021-37145 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37145?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-37145?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST